export const weekMapZh = ['周日', '周一', '周二', '周三', '周四', '周五', '周六'];
const calendarGrid = 42; // 7 * 6宫格;
export interface CalendarItem {
	year: number;
	month: number;
	day: number;
	battery?:number,
	backGroundColor?: string,
	isCurrentMonth: boolean;
}
// 是否为闰年
const isLeap = (year: number) => {
	return (year % 4 === 0 && year % 100 !== 0) || year % 100 === 0;
};

// 获取[month]月有几天
const getDays = (year: number, month: number): number => {
	const feb = isLeap(year) ? 29 : 28;
	const daysPerMonth = [31, feb, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];
	return daysPerMonth[month];
};

// 获取下个月/上个月有多少天
const getNextOrLastMonthDays = (date: Date, type: 'next' | 'last') => {
	const month = date.getMonth();
	const year = date.getFullYear();
	if (type === 'last') {
		const lastMonth = month === 0 ? 11 : month - 1;
		const lastYear = lastMonth === 11 ? year - 1 : year;
		return {
			year: lastYear,
			month: lastMonth,
			days: getDays(lastYear, lastMonth),
		};
	}
	const nextMonth = month === 11 ? 0 : month + 1;
	const nextYear = nextMonth === 0 ? year + 1 : year;
	return {
		year: nextYear,
		month: nextMonth,
		days: getDays(nextYear, nextMonth),
	};
};

export const generateCalendar = (date: Date) => {
	const currentYear = date.getFullYear();
	const currentMonth = date.getMonth();
	// 当月天数
	const days = getDays(currentYear, currentMonth);
	// 获取上月末尾天数和下月开头的天数，用于填补当月日历空白
	const { days: lastMonthDays, year: lastMonthYear, month: lastMonth } = getNextOrLastMonthDays(date, 'last');
	const { year: nextMonthYear, month: nextMonth } = getNextOrLastMonthDays(date, 'next');
	// 1号是星期几
	const weekIndex = new Date(`${currentYear}/${currentMonth + 1}/1`).getDay();
	// 显示在当月末尾的下月天数
	const trailDays = calendarGrid - weekIndex - days;
	let trailVal = 0;
	const calendarTable: CalendarItem[] = [];
	for (let i = 0; i < calendarGrid; i++) {
		// 补充上月天数
		if (i < weekIndex) {
			calendarTable[i] = {
				year: lastMonthYear,
				month: lastMonth,
				day: lastMonthDays - weekIndex + i + 1,
				isCurrentMonth: false,
			};
			// 补充下月天数
		} else if (i >= days + weekIndex) {
			if (trailVal < trailDays) {
				trailVal += 1;
			}
			calendarTable[i] = {
				year: nextMonthYear,
				month: nextMonth,
				day: trailVal,
				isCurrentMonth: false,
			};
		}
	}
	// 填充当月日期
	for (let d = 1; d <= days; d++) {
		calendarTable[weekIndex + d - 1] = {
			year: currentYear,
			month: currentMonth,
			day: d,
			isCurrentMonth: true,
		};
	}

	return calendarTable;
};
export const getType = (v?: any): string => Object.prototype.toString.call(v).slice(8, -1).toLowerCase();

export const isAllTrue = <T = boolean>(arr: T[], fn = (p: T): boolean => Boolean(p)) => arr.every(fn);
